Add this code to the Custom CSS field on the Style tab of your Business Hours widget’s settings:
[class*='status-indicator__Title-sc'] {
display: flex;
}
[class*='status-indicator__TriggerIcon-sc'] {
width: unset;
height: unset;
}
[class*='status-indicator__TriggerIcon-sc'] svg {
min-width: 16px;
height: 16px;
background-color: lightgrey;
}